Your the best teacher

Really well made and useful in learning the info!

so rare to find someone who is teaching in interesting and engaging way

This deserves a Neytfliz approved

Interesting

any one in 2024?

Common genetic code? Well if a being created all of us then that would support DNA code being so similar in all beings.

Is there a single instance of fossil record proof of an animal actually evolving and changing kinds .. like you see these slight variations everywhere which we can easily reproduce by breeding specific traits in dogs etc. But is there hard evidence where a fish becomes a mammal? Where bacteria became an animal? How's that possible? I understand it's a deeply difficult amount of time to fathom as an organism that lives less than 100 years.. it's just suuper hard to believe that a single celled organism ever became a complex organism. Isn't it possible that we have similarities in bone structure etc because we were designed by the same being? Furthermore what birds do we see that when they slim their bodies and close their wings aren't torpedo shaped? They have always had that shape to make them aerodynamic. And you are saying we don't think they have a common ancestor but doesn't every single organism have a common ancestor by definition of evolution we all evolved from the first single celled organism. And the hardest part of evolution for me to believe and I've never seen a shred of evidence for .. is where did that first single celled organism come from? How is it possible from nothing but hot water and steam and gasses, an organism just pooof existed and started reproducing. It's not possible. That does not happen.

This guy deserves 10 mil subscribers and 30 mil views

Thank you! ❤

its incredible how some people are able to say the same stuff in a different way and it makes 1000 times more sense than when another person (like my teacher) says it. this is 10 years too late, but thanks for saving my grade lol.

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W

that poor cat became an example for having a lot of "hydrocarbons" hahaha

Does this playlist cover everything in AP Biology?

There is 50-50 chance of being male or female, however, there is a larger percentage of females being born than males, why is that the case?

Crazy Russians with Baseball Bats? ???

What series is this??

i love you

9 years later and still helping students like me, thank you mr johnston!!

2024. This video helped me visualize what is an atom ⚛️ vs a molecule! I hope you are doing great this time around. If you do see this, say hello?!

U r the best science teacher in KZbin 🎉

Mr. Johnston, thank you so much for making these videos! I watched all of them. They were a life saver in helping me self study for the AP exam and thanks to you I got a 5! Great video series :)

i love you.

how does this video have 5k less views but 6 more comments? anyways if you sprayed gibrillin then cut the top, wouldn't that make quite a bushy,nice plant? now i know why the orange flower flowers in fall+winter: 1. It's less hot! 2. It likes the night!

I had a bright orange cluster of flowers in the corner of my dead grass-garden-thingy which survived for two years and then mysteriously dissapeared. Is it because it never made it to another orange flower so it could reproduce? note: the flower did die each summer(it's hot, turned completely yellow) so I'm pretty sure it wasn't the same cluster (kinda like trees where they look dead but are alive). So for the second year it came back but for the third year it never came. NOTE: It's called the California Poppy.

"this earth is amazing!"-archeans lol "oh, the good old days..." archeans Even though archaeal species are residents in the human oral cavity, human skin, and human gut, where they comprise up to 10% of the human gut anaerobic community, none are known to cause disease [5].Aug 13, 2020

2:09. Man. This video is old

Instructions unclear my friend cut my finger off 💀

Aren't we all kinda sperm people still :D

3:16 so heterosexuality originates way back prior to genders themselves. Damn.

would they use the O2 broke down from water for their own aerobic respiration?

16:12 huntingtion's disease

I’m going to take the 2025 AP bio, is it still the same curriculum

there was this ad saying "do you have trouble keeping up with your proffessor? try otter!" and i said "no, try science with johnston"

14:27 "kind of close to torture but its interesting still" wut??

So..circumcision changes everything?

you deserve way more views than you have

10:50 so funny lol "big word, scary word" had me laughing

thank you so much for this video lifee saverrr

exam in 4 days am i cooked

Me, the day before my birthday 2024: There are now 8,019,876,189 people in the world. We're way ahead of schedule.

Thank you big time I did more than even my text book ❤

Great explanation🔥🙏🏼🙌🏼

This was so helpful! Thank you!!

This might be personal, but do you support the harming of mice for experimental purposes? I don't.

You saved me thank you mr Johnston❤

Thank you so much this is brief and rich ❤❤❤❤

I have my biochem exam in 30 minutes, I'll lyk how it goes

This is so helpful thank you